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#!/bin/bash
#
# Runs pep8 on files changed from parent branch.
# Fail if any of the required tools are not installed.
if ! which pep8 >/dev/null; then
echo "Error: pep8 is not installed."
echo " Install the pep8 package."
exit 1
fi
EXIT=0
if [ -z "$1" ]; then
bzr diff > /dev/null
diff_status=$?
if [ $diff_status -eq 0 ] ; then
# No uncommitted changes in the tree.
bzr status | grep "^Current thread:" > /dev/null
if [ $? -eq 0 ] ; then
# This is a loom, lint changes relative to the lower thread.
rev_option="-r thread:"
else
# Lint changes relative to the parent.
rev=`bzr info | sed \
'/parent branch:/!d; s/ *parent branch: /ancestor:/'`
rev_option="-r $rev"
fi
elif [ $diff_status -eq 1 ] ; then
# Uncommitted changes in the tree, return those files.
rev_option=""
else
# bzr diff failed
exit 1
fi
# Extract filename from status line. Strip the @ that mark symlinks.
files=`bzr st --short $rev_option |
sed -e '/^.[MN]/!d; s/.* //' -e 's/@$//'`
else
# Add newlines so grep filters out pyfiles correctly later.
files=`echo $* | tr " " "\n"`
fi
echo "= lint ="
echo
echo "Checking for conflicts and issues in changed files."
if [ -z "$files" ]; then
echo "No changed files detected."
exit 0
else
echo
echo "Linting changed files:"
for file in $files; do
echo " $file"
done
fi
pep8_header=0
pep8_notices() {
if [ $pep8_header -eq 0 ]; then
pep8_header=1
echo
echo
echo "== pep8 notices =="
fi
# Format file:line:message output as lines grouped by file.
file_name=""
echo "$1" | sed 's,\(^[^ :<>=+]*:\),~~\1\n,' | while read line; do
current=`echo $line | sed '/^~~/!d; s/^~~\(.*\):$/\1/;'`
if [ -z "$current" ]; then
echo " $line"
elif [ "$file_name" != "$current" ]; then
file_name="$current"
echo
echo "$file_name"
fi
done
}
conflicts=""
for file in $files; do
# NB. Odd syntax on following line to stop lint.sh detecting conflict
# markers in itself.
if [ ! -f "$file" ]; then
continue
fi
if grep -q -e '<<<''<<<<' -e '>>>''>>>>' $file; then
conflicts="$conflicts $file"
fi
done
if [ "$conflicts" ]; then
echo
echo
echo "== conflict notices =="
echo
for conflict in $conflicts; do
echo "$conflict"
done
EXIT=1
fi
pyfiles=`echo "$files" | egrep '^scripts|\.py$'`
if [ ! -z "$pyfiles" ]; then
# The grep pattern must be generated from the pep8.py file in the
# pep8 package of the latest stable release:
#
# dpkg -L pep8 \
# | grep pep8.py \
# | head -n 1 \
# | xargs cat \
# | sed -n 's/.*\<\(E[[:digit:]][[:digit:]][[:digit:]]\)\>.*/\1/p' \
# | sort -u \
# | tr '\n' '|'
grep_pattern="\
(E101|E111|E112|E113|E201|E202|E203|E211|E221|E222|E223|E224|E225|E231\
|E241|E242|E251|E261|E262|E301|E302|E303|E304|E401|E501|E701|E702)"
# Source files
srcfiles=`echo "$pyfiles" | egrep '\.py$'`
if [ ! -z "$srcfiles" ]; then
result=`pep8 $srcfiles | egrep "$grep_pattern"`
if [ ! -z "$result" ]; then
pep8_notices "$result"
EXIT=1
fi
fi
# Script files
scriptfiles=`echo "$pyfiles" | egrep '^scripts'`
if [ ! -z "$scriptfiles" ]; then
for file in $scriptfiles; do
if file "$file" | grep -q "python"; then
result=`pep8 $file | egrep "$grep_pattern"`
if [ ! -z "$result" ]; then
pep8_notices "$result"
EXIT=1
fi
fi
done
fi
fi
exit $EXIT
|